Ruby 2.1.1
Merge pull request #76 from semenyukdmitriy/ruby_2_1_1

Ruby 2.1.1
Update gems
Update FastClick
Enable minimal-ui in iOS 7.1
Fix display bug on the iPad/iOS 7
Update Raven.js
Log exceptions in app.isSupportedBrowser
Log "unsupported browser" events
Improve old IE detection
Show doc index on escape in single doc mode instead of reloading the page
Reload the page when opening the root page in single doc mode
Fix error tracking in app.browserCheck
Tweak "unsupported browser" event logging
Update Prism.js and Go syntax
Add Go documentation
Add entries for Go's constants and variables

Fixes #80.
Update Moment.js documentation (1.6.0)
Update D3.js documentation (3.4.5)
Update PHP documentation (5.5.11)